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-rw-r--r--kernel/sched/fair.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index aaa0dfa29d53..6d73bdbb2d40 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -7687,6 +7687,15 @@ static int detach_tasks(struct lb_env *env)
lockdep_assert_held(&env->src_rq->lock);
+ /*
+ * Source run queue has been emptied by another CPU, clear
+ * LBF_ALL_PINNED flag as we will not test any task.
+ */
+ if (env->src_rq->nr_running <= 1) {
+ env->flags &= ~LBF_ALL_PINNED;
+ return 0;
+ }
+
if (env->imbalance <= 0)
return 0;